1. Unique device identification: direct marking of devices : guidance for Industry and Food and Drug administration staff Publication: Silver Spring, MD : Center for Devices and Radiological Health, November 17, 2017 Subject(s): Equipment and Supplies -- standardsEquipment Reuse -- standardsProduct Labeling -- standardsDevice Approval -- standardsHumansUnited StatesUnited States. Department of Health and Human Services.United States. Food and Drug Administration.